Podcast
Questions and Answers
Power-limited wiring requirements are found in Part ? of Article 760.
Power-limited wiring requirements are found in Part ? of Article 760.
3
Power-limited equipment circuit limitations are verified by ?.
Power-limited equipment circuit limitations are verified by ?.
The testing laboratory
Underground power-limited copper fire alarm circuits that extend outside the building must comply with ?.
Underground power-limited copper fire alarm circuits that extend outside the building must comply with ?.
Parts II, III, and IV of Article 800 and Part I of Article 300
The inside of a conduit installed under a concrete slab at grade level is considered a ? location.
The inside of a conduit installed under a concrete slab at grade level is considered a ? location.
What cable type is suitable for two hours of direct attack by fire?
What cable type is suitable for two hours of direct attack by fire?
Fire alarm circuit survivability is required for systems using ?.
Fire alarm circuit survivability is required for systems using ?.
Circuit integrity (CI) cable can be spliced with off-the-shelf twist-on connectors between the controls and the zone it serves.
Circuit integrity (CI) cable can be spliced with off-the-shelf twist-on connectors between the controls and the zone it serves.
Power-limited circuits may be wired using ?.
Power-limited circuits may be wired using ?.
Assuming that there are no approved separations between conductors, which of the following conductors are permitted in the same cable or raceway as power-limited circuit conductors?
Assuming that there are no approved separations between conductors, which of the following conductors are permitted in the same cable or raceway as power-limited circuit conductors?
Which cable type is permitted to be installed exposed in a plenum space?
Which cable type is permitted to be installed exposed in a plenum space?
Failure to remove conduit burrs usually results in ?.
Failure to remove conduit burrs usually results in ?.
The proper non-power-limited cable for riser use is ?.
The proper non-power-limited cable for riser use is ?.
Under what conditions can abandoned fire alarm cables remain in a building?
Under what conditions can abandoned fire alarm cables remain in a building?
Non-power-limited circuits may be wired using which of the following?
Non-power-limited circuits may be wired using which of the following?
Where non-power-limited wiring is installed exposed, it must be mechanically protected within ? of the finished floor.
Where non-power-limited wiring is installed exposed, it must be mechanically protected within ? of the finished floor.
Fire alarm circuit conductors above a suspended ceiling may use the same support wires that support the ceiling grid.
Fire alarm circuit conductors above a suspended ceiling may use the same support wires that support the ceiling grid.
An in-building fire emergency voice/alarm communications system is required for systems using total evacuation plans.
An in-building fire emergency voice/alarm communications system is required for systems using total evacuation plans.
Systems that require ? of occupants are not required to meet survivability requirements.
Systems that require ? of occupants are not required to meet survivability requirements.
Which of the following is an example of a distributed recipient mass notification system (DRMNS)?
Which of the following is an example of a distributed recipient mass notification system (DRMNS)?
Mass notification systems are used to warn of ?.
Mass notification systems are used to warn of ?.
Two-way, in-building, emergency communications systems are also called ?.
Two-way, in-building, emergency communications systems are also called ?.
Emergency voice/alarm communications systems utilize ?.
Emergency voice/alarm communications systems utilize ?.
An emergency voice/alarm communications system uses ? communications.
An emergency voice/alarm communications system uses ? communications.
In-Building Mass Notification Systems must operate at standby for 24 hours, followed by ? of all connected load.
In-Building Mass Notification Systems must operate at standby for 24 hours, followed by ? of all connected load.
Batteries used as secondary power supplies for emergency communications systems must have a minimum safety margin of ?.
Batteries used as secondary power supplies for emergency communications systems must have a minimum safety margin of ?.
In-building fire emergency voice/alarm communications systems are required to have what secondary power supply capacity?
In-building fire emergency voice/alarm communications systems are required to have what secondary power supply capacity?
Outgoing and return conductors of Class A, N, or X circuits ? be separated by a distance of ?.
Outgoing and return conductors of Class A, N, or X circuits ? be separated by a distance of ?.
Systems that provide for a partial evacuation or relocation of occupants must be ?.
Systems that provide for a partial evacuation or relocation of occupants must be ?.
Level 3 survivability requires which of the following?
Level 3 survivability requires which of the following?
Which of the following is a two-hour rated wiring method?
Which of the following is a two-hour rated wiring method?
When survivability is required for an emergency voice/alarm communications system, which of the following circuits are required to meet the survivability requirements?
When survivability is required for an emergency voice/alarm communications system, which of the following circuits are required to meet the survivability requirements?
Which of the following factors will affect speech intelligibility?
Which of the following factors will affect speech intelligibility?
NFPA 72 requires firefighter telephone systems to support no fewer than ? handsets under simultaneous use.
NFPA 72 requires firefighter telephone systems to support no fewer than ? handsets under simultaneous use.
Chapter 12 of NFPA 72 has ? levels of survivability.
Chapter 12 of NFPA 72 has ? levels of survivability.
Which of the following are examples of intranet alerts and reverse 9-1-1?
Which of the following are examples of intranet alerts and reverse 9-1-1?
A Temporal ? signal is used to signal total evacuation.
A Temporal ? signal is used to signal total evacuation.
Which of the following has the potential to cause poor speech intelligibility?
Which of the following has the potential to cause poor speech intelligibility?
Survivability requirements apply to systems using complete (total) evacuation.
Survivability requirements apply to systems using complete (total) evacuation.
Areas defined as requiring intelligibility are called ?.
Areas defined as requiring intelligibility are called ?.
A combination burglary/fire alarm system listed for household use may be used in a small mercantile occupancy.
A combination burglary/fire alarm system listed for household use may be used in a small mercantile occupancy.
A combination fire alarm/security system with a single display requires a second display for the fire alarm portion where the ?.
A combination fire alarm/security system with a single display requires a second display for the fire alarm portion where the ?.
Combination systems utilize ?.
Combination systems utilize ?.
Non-fire alarm system components may share fire alarm wiring on a combination system.
Non-fire alarm system components may share fire alarm wiring on a combination system.
Direct connection of two or more compatible control units is sometimes referred to as ? communication.
Direct connection of two or more compatible control units is sometimes referred to as ? communication.
A technology that allows fire alarm signals to be sent over a local area network is called ?.
A technology that allows fire alarm signals to be sent over a local area network is called ?.
Electric fire pumps must be supervised for ?.
Electric fire pumps must be supervised for ?.
Diesel fire pumps must be supervised for ?.
Diesel fire pumps must be supervised for ?.
Smoke detectors installed in elevator lobbies for elevator Phase I recall must be installed within ? of the centerline of each elevator car controlled by the detector.
Smoke detectors installed in elevator lobbies for elevator Phase I recall must be installed within ? of the centerline of each elevator car controlled by the detector.
What minimum number of fire alarm control circuits (for Phase I recall) is required for each group of elevators?
What minimum number of fire alarm control circuits (for Phase I recall) is required for each group of elevators?
The ? is selected by the authority having jurisdiction (AHJ).
The ? is selected by the authority having jurisdiction (AHJ).
Heat detectors used for shunt trip are not required to be connected to the fire alarm system and are not required to be monitored for integrity.
Heat detectors used for shunt trip are not required to be connected to the fire alarm system and are not required to be monitored for integrity.
Pit sprinklers located less than ? above the pit floor are exempt from causing shunt trip.
Pit sprinklers located less than ? above the pit floor are exempt from causing shunt trip.
Which of the following signals is not required to be transmitted from an interconnected suppression system control unit to the main fire alarm control unit?
Which of the following signals is not required to be transmitted from an interconnected suppression system control unit to the main fire alarm control unit?
The standard that contains requirements for duct detection in HVAC systems is ?.
The standard that contains requirements for duct detection in HVAC systems is ?.
A duct smoke detector actuation is permitted to cause a(n) ?.
A duct smoke detector actuation is permitted to cause a(n) ?.
Control units that perform suppression system releasing service must be ?.
Control units that perform suppression system releasing service must be ?.
Which of the following is a 'fail-safe' circuit?
Which of the following is a 'fail-safe' circuit?
The maximum delay (retard) for a waterflow switch is ?.
The maximum delay (retard) for a waterflow switch is ?.
A high-rise building is usually defined as a building with an occupiable level more than ? above the lowest level of fire department access.
A high-rise building is usually defined as a building with an occupiable level more than ? above the lowest level of fire department access.
Which of the following must be deenergized when sprinklers actuate in the same area?
Which of the following must be deenergized when sprinklers actuate in the same area?
Specifications are an opportunity for the designer to add ?.
Specifications are an opportunity for the designer to add ?.
Under the MasterSpec® numbering system, specifications for fire protection systems are now found in Division ?.
Under the MasterSpec® numbering system, specifications for fire protection systems are now found in Division ?.
The Construction Specifications Institute (CSI) revised the MasterSpec® specifications numbering system in ?.
The Construction Specifications Institute (CSI) revised the MasterSpec® specifications numbering system in ?.
Specifications Division ? applies to all other divisions.
Specifications Division ? applies to all other divisions.
Public authorities having jurisdiction, such as a fire marshal or electrical inspector, can enforce specifications.
Public authorities having jurisdiction, such as a fire marshal or electrical inspector, can enforce specifications.
Blueprints are developed using the ? process.
Blueprints are developed using the ? process.
A 'D' size drawing is ?.
A 'D' size drawing is ?.
Hidden objects are usually shown by ? lines.
Hidden objects are usually shown by ? lines.
Match lines are usually indicated by which line type?
Match lines are usually indicated by which line type?
Which of the following documentation must be provided for all fire alarm system installations?
Which of the following documentation must be provided for all fire alarm system installations?
Which of the following is not required on shop drawings by Chapter 7 of NFPA 72?
Which of the following is not required on shop drawings by Chapter 7 of NFPA 72?
Record drawings are usually developed from shop drawings by the ?.
Record drawings are usually developed from shop drawings by the ?.
Standard symbols for fire protection are found in NFPA ?.
Standard symbols for fire protection are found in NFPA ?.
Standard electrical symbols are found in NECA ?.
Standard electrical symbols are found in NECA ?.
Non-power-limited circuits operate with voltages up to ?.
Non-power-limited circuits operate with voltages up to ?.
Tables ? and ? provide limitations for power-limited circuits.
Tables ? and ? provide limitations for power-limited circuits.
Study Notes
Wiring and Circuit Requirements
- Power-limited wiring requirements specified in Part 3 of Article 760.
- Limitations for power-limited equipment circuits must be verified by a testing laboratory.
- Underground power-limited copper fire alarm circuits require compliance with Articles 800 (Parts II, III, IV) and 300 (Part I).
- Suitable cable type for two hours of direct exposure to fire is FPLP-CI.
- Power-limited circuits may utilize methods defined in Chapter 3, including power-limited and non-power-limited wiring methods.
- Class 2 conductors are permitted in the same cable or raceway as power-limited circuit conductors without approved separations.
Safety and Installation Considerations
- The inside of conduits under concrete slabs is classified as a wet location.
- FPLP cable is allowed to be installed in plenum spaces, while specific riser applications use NPLFR cable.
- Non-power-limited circuits can be wired using THHN cable in EMT conduits.
- Failure to remove conduit burrs typically results in ground faults, impacting safety compliance.
- Exposed non-power-limited wiring requires mechanical protection within seven feet of the finished floor.
System Integrity and Survivability
- Fire alarm circuit survivability is mandatory for systems employing partial evacuation or relocation.
- Notifications of emergency alarm circuits need survival integrity, particularly under challenging conditions.
- Level 3 survivability demands a fully sprinklered building for optimal resilience.
- Systems designed for total evacuation plans do not necessitate survivability standards.
Mass Notification Systems
- In-building emergency communication systems are referred to as firefighters' telephones.
- Mass notification systems serve to issue warnings for various emergencies.
- Two-way in-building emergency systems also denote reverse 9-1-1 installations.
- Emergency voice/alarm systems function predominantly through one-way communications.
Inspection and Documentation Standards
- Fire alarm system installations require comprehensive documentation, including calculations, floor plans, and riser diagrams.
- Specifications for fire protection systems are contained within Division 28 under the MasterSpec® numbering system, revised in 2004.
- Standard symbols for fire protection are found in NFPA 170, while standard electrical symbols are found in NECA 100.
- Documentation must detail equipment specifications, without requiring the name of the equipment supplier on shop drawings.
Special Considerations for Equipment
- Smoke detectors in elevator lobbies are mandated to be placed within 21 feet of the centerline of each elevator car.
- Class D circuits are classified as fail-safe circuits, crucial for system reliability.
- Standards are set for control units in suppression systems, mandating monitoring for alarms, troubles, and supervision signals.
Compliance with Standards
- NFPA 90A outlines duct detection requirements for HVAC systems, crucial for maintaining fire safety.
- Physical distances for outgoing and return conductors of Class A, N, or X circuits must be maintained as prescribed.
- The maximum delay permitted for a waterflow switch is regulated to 90 seconds, ensuring prompt alerting.
General Fire Safety Principles
- Areas requiring intelligibility for announcements are designated as ADS (Areas of Designated Speech).
- Power-limited circuits function effectively under voltages up to 600V, governed by tables 12A and 12B.
- Two-hour rated firewalls require a firestopping classification with a minimum F rating of 120 to block flame passage.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
This quiz covers the wiring and circuit requirements outlined in Article 760 for power-limited equipment and fire alarm circuits. It also addresses safety considerations for installation, including cable types and conduit classifications. Test your knowledge on compliance and best practices for wiring methods in fire alarm systems.
